WhisperKOOL Extreme 3500ti Self-Contained Cooling Unit

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WhisperKOOLSKU: U-WKEX3500-115-3

Sale price$4,885.00 Regular price$6,162.75

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24V Thermostat Conversion Kit

Introducing our new 24-volt thermostat conversion kit for WhisperKOOL split systems!

Utilize industry-leading technology from major manufacturers to monitor the environment of your cellar. (See individual thermostat manufacturers’ websites for details.)

  • Connect your thermostat to Wi‑Fi to control the temperature from your phone, tablet or laptop.
  • Monitor run time and energy usage.
  • Set alarm notifications.
  • View your cellar conditions from your mobile device.

The use of the 24-volt thermostat conversion kit eliminates the thermostat normally included with the system and allows your contractor to select, purchase and install the thermostat technology of your choice, including but not limited to Nest, Ecobee, and Honeywell.

By selecting the 24V Thermostat Conversion Kit, you have acknowledged that the system will not be built with the standard WhisperKOOL control or liquid measuring bottle probe. You will have to source and purchase your own 24V thermostat to run the equipment.

  • Not utilizing the thermostat from WhisperKOOL also eliminates the use of the bottle probe.
  • WhisperKOOL does not provide smart thermostats.  Those must be purchased separately.
  • WhisperKOOL customer service staff do not provide technical support for customers’ selected thermostats.




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Customer Reviews

Based on 7 reviews
Madeliene J.
Amazed with the product

I've had the whisperkool 3500ti in my wine cellar room for a couple of weeks and working smoothly. I usually don't write reviews but I'm so impressed with the whisperkool and the service from this Wine Cooling Units store, Wine Coolers Empire that I felt that I had to share my experiences.

Lucas S.
Quality product

I'm a winemaker and I got this for my 3500ti wine cellar cooling unit. It's doing great so far.

Jennifer M.
Excellent unit

I've had this 3500ti Self-Contained unit wine cooler for almost a year and it's done great. It keeps my wines at an optimal temperature. The low speed is fairly quiet and has kept up my cellar room with no problem. It's been a solid investment so far. Thanks, Wine Coolers Empire!

Eric Stevens
Great Cellar Cooler

Its now been installed for ~ 2 weeks. So far its done great. Low speed is fairly quiet and has easily kept up and the Fon feature is keeping the moisture in the appropriate range.

Awesome product

Totally worth it


Controller is easy to use. It has a small size so I wasn't 100% sure at first if its going to cool our cellar but it does the job, well.


Very quiet and it doesn't bother my wife unlike our previous one